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S-YGH52 - O'Hara

 Diagram n (λ)    n calculation    Diagram τ (λ)    τ calculation    Analogue search

  Main parameters
nd = 1.786499
ne = 1.790246
Vd = 50.00
Ve = 49.75
nF - nC = 0.015729
nF' - nC' = 0.015882
Coloring:
0.31 - 0.39 mkm.

  Coefficients of dispertion formulas
Type: Schott
Spectral range: 0.3650146 - 0.85211 mkm.
C1 = 3.1224406 C2 = -0.015600077 C3 = 0.023832255 C4 = 0.00072563954 C5 = -0.000030563799 C6 = 0.0000020883401

  Refraction index
n 2.3254-----
n 1.9701-----
n 1.5296-----
n 1.06-----
n t-----
n s1.773482
n r1.779072
n C1.781753
n C'1.782506
n 0.63281.783210
n D1.786360
n d1.786499
n e1.790246
n F1.797483
n F'1.798388
n g1.806155
n h1.813404
n i1.825874
n 0.3341-----
n 0.3126-----
n 0.2967-----
n 0.2804-----
n 0.2483-----
  Relative partial dispertion
PC,t-----
PC,A'0.3407
Pd,C0.3017
Pe,C0.5399
Pg,d1.2496
Pg,F0.5513
Ph,g0.4608
Pi,g1.2536
PC',t-----
Pe,C'0.4920
PF',e0.5176
Pi,F'1.7474
 transmittance: 10 mm
τ0.380.914
τ0.390.945
τ0.40.961
τ0.420.976
τ0.440.983
τ0.460.988
τ0.480.993
τ0.50.995
τ0.550.996
τ0.60.996
τ0.650.995
τ0.70.995

  mechanical
Poisson coef.: 0.294
Rigidity: 475 Pa*108
Knoop hardness: 720
Abrasion: 60

  Chemical
Climatic resistance: 1
Resistance to acids: 4
Phosphate resistance: 1

 Temperature coefficient of linear expansion
Temp. range, CValue, 1/C*10^-7
-30 ~ 7063
100 ~ 30077

 Temperature coefs. of nrel
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -20t3.1
-20 ~ 0t3.1
0 ~ 20t3.2
20 ~ 40t3.3
40 ~ 60t3.6
60 ~ 80t3.9
-40 ~ -20C'3.8
-20 ~ 0C'3.8
0 ~ 20C'3.9
20 ~ 40C'4
40 ~ 60C'4.2
60 ~ 80C'4.5
-40 ~ -203.8
-20 ~ 03.8
0 ~ 203.9
20 ~ 404.1
40 ~ 604.3
60 ~ 804.6
-40 ~ -20D4
-20 ~ 0D4
0 ~ 20D4.1
20 ~ 40D4.3
40 ~ 60D4.5
60 ~ 80D4.7
-40 ~ -20e4.1
-20 ~ 0e4.2
0 ~ 20e4.3
20 ~ 40e4.5
40 ~ 60e4.7
60 ~ 80e5
-40 ~ -20F4.6
-20 ~ 0F4.7
0 ~ 20F4.8
20 ~ 40F5
40 ~ 60F5.2
60 ~ 80F5.4
-40 ~ -20g5.1
-20 ~ 0g5.2
0 ~ 20g5.3
20 ~ 40g5.5
40 ~ 60g5.8
60 ~ 80g6